CN2505582Y - Bidirectional compensating device for oil pipe - Google Patents
Bidirectional compensating device for oil pipe Download PDFInfo
- Publication number
- CN2505582Y CN2505582Y CN 01261867 CN01261867U CN2505582Y CN 2505582 Y CN2505582 Y CN 2505582Y CN 01261867 CN01261867 CN 01261867 CN 01261867 U CN01261867 U CN 01261867U CN 2505582 Y CN2505582 Y CN 2505582Y
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- compensating device
- adapter sleeve
- central tube
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a bidirectional compensating device for oil pipe in the oil industry which comprises an upper joint center pipe and a connecting sleeve, etc., wherein, an upper joint, the connecting sleeve and a sealing sleeve are orderly connected, the center pipe is inserted in and passes through the upper joint, the connecting sleeve and the sealing sleeve and is connected with the upper joint by a sliding key, a control mechanism is arranged between the connecting sleeve and the sealing sleeve. The utility model is applied to be connected with tubing strings in various production wells and water injection wells, the tubing strings are shortened while pressed and lengthened while pulled; therefore, the tubing strings are bidirectionally protected and the deformations of the tubing strings are reduced; thereby the utility model has the advantages that manufacturing technique measures are effectively ensured, underground mining tools are protected and production cost is lowered.
Description
The utility model relates to a kind of oil production equipment of petroleum industry, and particularly a kind of oil pipe two-way compensating device is applicable to various producing wells and water injection well.
At present, at the exploitation scene of petroleum industry, down-hole string, particularly the oil pipe tubing string because of being subjected to the influence of changing factors such as temperature and pressure, can produce stretching and shrinkage strain phenomenon, cause the tubing string stress to change, cause production technology measure inefficacy and downhole tool impaired easily.And the oil pipe compensation arrangement is the special equipment that is used to improve the down-hole string force-bearing situation.The oil pipe compensation arrangement of present The field; be by the band shoulder two-layer pipe box be fitted together, when going into the well because of tubing string reaches the adjustment upper limit from redrawing, when tubing string is in pressured state; the oil pipe compensation arrangement is protected a whole set of oil pipe tubing string because the effect of pressure is shortened.But this oil pipe compensation arrangement can only under the situation of tubing string pressurized effectively promptly only can carry out unidirectional shortening compensation to the tubing string under the pressurized situation, can't tackle the oil pipe tubing string that is in the complicated technology measure of down-hole.
The purpose of this utility model is to make the oil pipe two-way compensating device, and overcoming in the prior art only can provide a kind of two-way oil pipe compensation arrangement that is applicable under pressurized, the tension two states situation in the defective of unidirectional compensation under the pressured state.The oil pipe tubing string that is in the complicated technology measure of down-hole is effectively compensated.What guarantee downhole production technology effectively carries out, protects downhole tool and facility.Improve operating efficiency, reduce production costs.
The present technique solution can reach above-mentioned purpose: the oil pipe two-way compensating device is made up of top connection, central tube, adapter sleeve etc., top connection, adapter sleeve and sealing shroud are connected successively, central tube wears wherein and is connected with feather key with top connection, and controlling organization is installed between adapter sleeve and the sealing shroud.
The utility model is compared with existing oil pipe compensation arrangement, has the following advantages:
1, original device can only shorten when the oil pipe pressurized, and the utility model can extend when the oil pipe tubing string is subjected to pulling force, shorten when the oil pipe tubing string is stressed, and reduces the distortion of tubing string, realizes the bidirectional protective tubing string;
2, the utility model adopts hydraulic control, can open pressure according to the operating mode different adjustment, is applicable to the oil pipe tubing string of various oil, well;
3, owing to the protection of the utility model to oil pipe, guaranteed the smooth implementation of production technology, guarantee that downhole tool is not impaired, reduced cost of production.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to accompanying drawing, the oil pipe two-way compensating device, form by top connection 1, central tube 3, adapter sleeve 4 etc., top connection 1, adapter sleeve 4 and sealing shroud 9 are connected successively, central tube 3 wears wherein and is connected with top connection 1 usefulness feather key 2, controlling organization is installed between adapter sleeve 4 and the sealing shroud 9, and the elongation of compensation arrangement and shortening are controlled by controlling organization.Controlling organization is made up of gate ring 5, lock dog 6, and gate ring 5 is provided with the shear pin hole, interior dress shear pin 7; Adapter sleeve 4 is provided with the lock dog installing hole, Built-in lock piece 6.The position of central tube 3 corresponding lock dogs 6 is provided with the lock dog fixing hole, and central authorities radially are provided with the hydraulic pressure through hole in the fixing hole.Ground comes liquid to enter in the annular seal space at controlling organization place by this hole, opens the utility model.The fitting face of the bottom of gate ring 5 and central tube 3 and sealing shroud 9 is provided with seal groove, built-in ring 8; Adapter sleeve 4 also is provided with sealing ring with the fitting face of top connection 1 and central tube 3.The utility model is with oil pipe tubing string G.I.H, and behind the production technology base sealed packer, oil pipe is suppressed shear pin 7 is cut off.Gate ring 5 moves down, and discharges lock dog 6, throws off between central tube 3 and the adapter sleeve 4 to connect, and liquid is in the hydraulic pressure through hole enters the annular space of adapter sleeve 4 and sealing shroud 9 formation.According to the corresponding elongated or shortening of stressing conditions the utility model of down-hole string.Improve the stress of complicated tubing string, protection oil pipe tubing string.Thereby guarantee the injury-free of downhole tool, guarantee that technological measure is effective, production is normally carried out, reduce production costs.The utility model is suitable for connecting the oil pipe tubing string of various producing wells and water injection well.
Claims (4)
1, oil pipe two-way compensating device, form by top connection (1), central tube (3), adapter sleeve (4) etc., top connection (1), adapter sleeve (4) and sealing shroud (9) are connected successively, central tube (3) wears wherein and is connected with feather key (2) with top connection (1), it is characterized in that controlling organization is installed between adapter sleeve (4) and the sealing shroud (9).
2, oil pipe two-way compensating device according to claim 1 is characterized in that controlling organization is made up of gate ring (5), lock dog (6), and gate ring (5) is provided with the shear pin hole, interior dress shear pin (7); Adapter sleeve (4) is provided with the lock dog installing hole, Built-in lock piece (6).
3, oil pipe two-way compensating device according to claim 1 is characterized in that the position of the corresponding lock dog of central tube (3) (6) is provided with the lock dog fixing hole, radially is provided with the hydraulic pressure through hole in the fixing hole.
4, oil pipe two-way compensating device according to claim 1 is characterized in that the bottom of gate ring (5) and the fitting face of central tube (3) and sealing shroud (9) are provided with seal groove, built-in ring (8); Adapter sleeve (4) is provided with sealing ring with the fitting face of top connection (1) and central tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01261867 CN2505582Y (en) | 2001-09-25 | 2001-09-25 | Bidirectional compensating device for oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01261867 CN2505582Y (en) | 2001-09-25 | 2001-09-25 | Bidirectional compensating device for oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2505582Y true CN2505582Y (en) | 2002-08-14 |
Family
ID=33669727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01261867 Expired - Fee Related CN2505582Y (en) | 2001-09-25 | 2001-09-25 | Bidirectional compensating device for oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2505582Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362493A (en) * | 2012-04-06 | 2013-10-23 | 中国石油化工股份有限公司 | Rotatable adaptive compensator of coiled tubing test string |
| CN107288552A (en) * | 2017-08-10 | 2017-10-24 | 西安石油大学 | Bidirectionally limited expansion locking type coiled tubing built-up joint |
-
2001
- 2001-09-25 CN CN 01261867 patent/CN2505582Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362493A (en) * | 2012-04-06 | 2013-10-23 | 中国石油化工股份有限公司 | Rotatable adaptive compensator of coiled tubing test string |
| CN103362493B (en) * | 2012-04-06 | 2015-09-23 | 中国石油化工股份有限公司 | Coiled tubing test string can revolve adaptive compensator |
| CN107288552A (en) * | 2017-08-10 | 2017-10-24 | 西安石油大学 | Bidirectionally limited expansion locking type coiled tubing built-up joint |
| CN107288552B (en) * | 2017-08-10 | 2024-03-12 | 西安石油大学 | Bidirectional limiting expansion locking type coiled tubing combined joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |